The side length of Rs is dependent on QRS
Okay so in this question it says to solve f(7). This means to plug in the 7 every where you see an x, so that it looks like this: 
Then you'll solve it like a normal equation.
Hope this helped! Let me know if there is anything I need to clarify or explain more in depth!
Answer:
7z + 17
Step-by-step explanation:
15 and 2 are the only alike terms.
Please mark brainliest!
Answer:
D
Step-by-step explanation:
because I remember doing this before
Answer:
The measure of the third angle is 75 degrees.
Step-by-step explanation:
We know that the total angles of a triangle must equal 180 degrees. If we know two of the angles, we must add them together, then subtract them from 180. 45 + 60 = 105, 180 - 105 = 75. The measure of the third angle is 75 degrees.
